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2,024
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Media Type
1
collections
1,967
texts
24
audio
23
movies
6
software
2
data
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Availability
2,002
Always Available
18
Available to Borrow
4
Waitlist
Topics & Subjects
645
NASA Technical Reports Server (NTRS)
372
SWITCHING
366
bell system
296
SWITCHING CIRCUITS
294
DTIC Archive
291
switching
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Collection
645
NASA Network Resource and Training Site
290
Defense Technical Information Archive
254
The ARCHIVE.ORG Manual Library
251
The Magazine Rack
223
The Bell System Technical Journal (1922-1983)
183
Bell System Documents
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Creator
645
nasa technical reports server (ntrs)
294
defense technical information center
171
eric
167
western electric co.
9
non
4
sandhills publishing
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Language
1,973
English
1
German
1
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